A wide chorus of voices are calling for Trump to recommit to the Paris agreement: Other world leaders and hundreds of scientists, of course, but also CEOs of major energy companies and other big US corporations.

President Donald Trump plans to announce on Thursday whether the USA will remain in the Paris climate agreement, as two people familiar with administration deliberations said he was leaning toward exiting the landmark accord. But that treaty was U.S. Senate-ratified.

In a jibe at the USA administration, Juncker told the audience at an event of the Confederation of German Employers in Berlin that “not everything that is written in worldwide agreements is fake news”.

A USA pullout would be disappointing but the European Union stands ready to take global leadership on the issue, European Commission Vice President Maros Sefcovic said in Brussels.

The departure of the USA would make it significantly harder to avoid temperatures rising by more than two degrees Celsius by 2100, according to climate modeling by US not-for-profit Climate Interactive. “There is a reason the rest of the industrialized world is rushing to capture what will be the largest market opportunity of the 21st century”.

How large are US CO2 emissions?

If the United States, by most measures the world’s second-biggest polluter after China, were to pull out or reduce its goals, efforts to reduce the global temperature increase might fail.

Germany’s Angela Merkel, who in the past has been dubbed the “climate chancellor” for her efforts to fight global warming, said her country would “continue to fulfill our obligations under the Paris climate agreement as part of the European framework”. What’s more, over the haul, climate change itself threatens to impose huge costs on the economy. He met Tuesday with EPA Administrator Scott Pruitt, one of the strongest voices calling for the U.S.to drop out of the Paris accord. “But today, governments are not the only entities that matter in climate change”.

However, pulling out the Paris agreement would be the biggest move Trump has made thus far to reverse Obama’s clean energy and climate legacy.

They will also call on other global leaders to respect the commitments made in the Paris climate deal. That requires the same one-year notice, but there’s no waiting period.

“Once China’s development reaches a certain level, it has to move to a sustainable model, that means we have to push green development”, he said.

Under the Paris accord, the U.S. promised to cut its greenhouse gas emissions 26% to 28% below the levels in 2005 by 2025.

But some scientists have pointed out even with the agreement in place, halting global warming at two degrees might be unattainable.

States including California, New York and MA continue to move forward with aggressive policies to cut carbon emissions.

It takes at least a year and possibly up to 3½ years for a nation to withdraw from the pact.

The U.S. set a target for reducing greenhouse gas emissions by 2025 at 26 to 28 percent below 2005 levels – or about 1.6 billion tons of annual emissions.

In Madrid, the leaders of India and Spain expressed their commitment to fighting climate change and reiterated their support for implanting the Kyoto and Paris accords.

The summit in Brussels could mark a dramatic shift in global politics, with the European Union taking over from the United States in working with China to fight climate change.

“A USA climate retreat will no doubt leave a big hole on the worldwide climate regime”.

On Tuesday, Modi said in Berlin that it would be a “crime” to spoil the environment for future generations as the world awaits a decision on USA climate policy. Nicaragua and Syria are among the only countries that have not signed the agreement.

“Trump really isn’t as relevant as he wants to be”.

Though it is uncertain what the USA exit will look like, the decision has already sparked widespread disappointment and outrage.